Grain-weighing machine



(No Model.)

S. E. BROWN. GRAIN WEIGHING MACHINE. No. 449,402. Patented Mar. 31, 1891.

UNITED STATES PATENT OFFICE.

SAMUEL E. BROVN N, OF KANE, ILLINOIS.

GRAIN-WEIGHING MACHINE.

SPECIFICATION forming part of Letters Patent No. 449,402, dated March 31, 1891.

Application filed December 5, 1890. Serial No. 373,717. (No model.)

To coZZ whom it may concern.-

Be it known that I, SAMUEL E. BROWN, of Kane, in the county of Greene and State of Illinois, have invented a new and useful Improvementin Grain-Veighing Machines; and I do hereby declare that the following is a full and exact description of the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon.

My invention relates to an improvement in grain-weighing machines of that class designed to weigh the grain as it is delivered into the sacks and also register automatically the number of sacks filled.

The object of my invention is to provide a machine more accurate in action and more simple in construction than those of its class heretofore in use.

With this end in view my invention consists in certain details of construction and combinations of parts explained in the following specification and illustrated in the accompanying drawings, in which- Figure l is a front elevational View of my device. Fig. 2 is a side elevational view of the same; and Fig. 3 is a back view of the upper part of my machine, shown partly in section.

Referring to Figs. 1 and 2, A represents a vertical frame supported beneath the spout from which the grain is discharged, and may be made integral with the back and front of the two-way discharge-spout B.

O is a roclcshaft journaled in the central part of said two-way spout and supporting a rectangular frame D, adapted to oscillate upon its supporting-axis c, as indicated by the arrow No. 1. (See Fig. 3.)

Pivoted to each side of the frame D, a little above and near the axis 0, as shown in Fig. 1, are two bent bars d, depending vertically on each side of the frame A, each pair of said bars provided at their lower extremities with a horizontal platform c, adapted to support the bottom of the sack, the upper vertical parts of said bars being provided, as shown in Figs. 1 and 2, with broad semicircular hoops g, preferably made of sheet-iron, and furnished with hooks Z) upon which to hang the sacks. To prevent frictional interference with the vertical action of the bars at, they are provided with anti-friction rollers a, adapted for contact with the frameA, as shown in Figs. 1 and 2.

Rigidly secured upon the rock shaft f, which is journaled in the back and front of the two-way discharge-spout B, is a thin leaf 1), of wood or metal, the upper end of which is adapted to vibrate from side to side of the interior of the vertical part of the spout B, as indicated by the arrow No. 4 in Fig. Upon the rear end of the rock-shaft f (see Figs. 2 and 3) is a crank-arm 1., provided with a crank-pin J, adapted to engage with a slotted arm 71, the latter secured to the central part of the oscillating frame D, as shown in Fig. 3.

Secured upon the cross-bars ll of the rocking frame D and extending from one to the other, as shown in Fig. 3, is a curved bar 7e, upon which is adapted to travel longitudinally a balance-weight m, supported upon anti-friction rollers 02, the travel of said weight m being limited by adj ustable stops p, secured at any required distance apart by set-screws, as shown in the drawings. On the opposite or front side of the two-way spout, as shown in Fig. 1, is an ordinary counting and registering mechanism actuated by means of a loop or yoke q, secured on the upper side of the front bar of the rocking frame D and adapted to embrace a stud 10, secured in the rear end of a toggling-pawl, which travels horizontally in a slot 0', the forward end of said pawl being held in contact with the periphery of the ratchet-wheel of the counter by a spring S.

To limit the arc of oscillation of the frame D, there is attached to each cross-bar Z one end of a strap 15 of leather or'other pliable material, the other end being secured to the side or any other suitable part of the two-way spout, as shown in Fig. 1.

The several parts of my machine being constructed and combined as above described its operation is as follows: The machine being properly connected with the discharge-spout of the elevator, thrashing-machine, conveyer, or other place from which the grain is to be delivered, and a sack suspended to each of the bands g, the grain is admitted to the two-way dischargespout B. It will be here observed by reference to Fig. 3 that with the arrangement of parts above described one side only of the two-way spout is open-namely, that on which the sack is elevated, as represented by the arrow No. 3thestops if being adj usted and secured in position upon the bar It so as to limit the travel of the balance-weight to such distance on either side of the axis upon which the frame D oscillates that the latter will tip when the required weight of grain has been delivered into the sack. The grain is then admitted to the two-way spout, by which it is directed into the upper sack. As soon as the latter has received the required amount of grain the weight thereof causes it to overcome the resistance of the balanceweight m and to tip the frame D, as indicated by the arrow No. 1, This motion, it will be observed, closes, by reversing the position of the leaf 1;, as indicated by arrow 2, the spout from which the grain has just been delivered and opens the one on the opposite side, at the same time lifting the empty sack to the required position.

The purpose of the curvature of the bar it is to give to the balance-weight manimpetus by which it is impelled to the opposite ext-remity of its course withgreater rapidity than it would travel upon a straight bar, the

' end at which the weight is when lifted, reachframe D, oscillates upon its axis the requisite length of stroke for properly actuating the counting mechanism.

Having fully described my invention, what I claim as new, and desire to secure by Letters Patent, is v 1. In a grain-weighing machine, an automatic weighing device comprising a vertical frame surmounted by a two-way deliveryspout, a rectangular frame adapted to oscillate upon an axis journaled centrally between the outlet-orifices of said two-way spout, a yoke or slotted arm mounted upon said oscillating supported upon anti-friction rollers adapted to travel upon said curved bar, and adj ustable stops for limiting the travel of said balan ce-weight, all of said parts constructed,

combined, and adapted to each other for cooperative action, substantially as and for the a purpose set forth. 1

2. The combination, with the oscillating frame D, of mechanism for actuating the counting and registering dials, comprising a yoke or loop q, secured to the upper side of said frame D, a plate secured to the front of the two-way spout and provided with a slot r, a pawl adapted to travel in said slot, and a check-pawl 0, all of said parts constructed and adapted to operate substantially as and forthe purpose set forth,

In testimony that I claim the foregoing I have hereunto set my hand this 15th day of September, 1890. 1

SAMUEL E. BROWN.

Witnesses:

W'. H. MILLER, ROBERT NEWTON. 

